@ARTICLE {4153,
author={T. M. F. Alves  and A. Cartaxo},
doi={10.1364/OE.17.018714},
journal={Optics Express},
title={Semi-analytical approach for performance evaluation of direct-detection OFDM optical communication systems},
year={2009},
month={October},
volume={17},
number={21},
pages={18714-18729},
ISSN={1094-4087}
}